Adaptive Elastic Echo State Network for Channel Prediction in IEEE802.11ah Standard-Based OFDM System
As a promising wireless communication technology, the IEEE802.11ah standard is designed to connect various sensors in the Internet of Things (IoT) in future. It is important to investigate adaptive transmission in the IEEE802.11ah standard. However, exact channel state information (CSI) is required....
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
IEEE
2020-01-01
|
Series: | IEEE Access |
Subjects: | |
Online Access: | https://ieeexplore.ieee.org/document/8952717/ |
id |
doaj-60c6d14d27cf4570ba53320aeeaf8b78 |
---|---|
record_format |
Article |
spelling |
doaj-60c6d14d27cf4570ba53320aeeaf8b782021-03-30T01:49:14ZengIEEEIEEE Access2169-35362020-01-018101691018510.1109/ACCESS.2020.29648108952717Adaptive Elastic Echo State Network for Channel Prediction in IEEE802.11ah Standard-Based OFDM SystemYongbo Sui0https://orcid.org/0000-0001-9555-7669Yigang He1https://orcid.org/0000-0002-6642-0740Tongtong Cheng2Yuan Huang3https://orcid.org/0000-0002-7887-0095Yuting Wu4https://orcid.org/0000-0002-9926-8757Luqiang Shi5https://orcid.org/0000-0003-3901-1535Ali Farhan6https://orcid.org/0000-0001-5469-8983School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, ChinaSchool of Electrical Engineering, Wuhan University, Wuhan, ChinaSchool of Electrical and Automation Engineering, Hefei University of Technology, Hefei, ChinaSchool of Electrical and Automation Engineering, Hefei University of Technology, Hefei, ChinaSchool of Electrical and Automation Engineering, Hefei University of Technology, Hefei, ChinaSchool of Electrical and Automation Engineering, Hefei University of Technology, Hefei, ChinaSchool of Electrical and Automation Engineering, Hefei University of Technology, Hefei, ChinaAs a promising wireless communication technology, the IEEE802.11ah standard is designed to connect various sensors in the Internet of Things (IoT) in future. It is important to investigate adaptive transmission in the IEEE802.11ah standard. However, exact channel state information (CSI) is required. Channel prediction is an available approach. Therefore, an adaptive elastic echo state network (AEESN) for channel prediction in the IEEE802.11ah standard-based orthogonal frequency division multiplexing (OFDM) system is introduced in this paper. The AEESN includes two key components, a basic echo state network and an adaptive elastic network. The latter is imported to overcome collinearity problems due to vast neurons in the former and to avoid ill-conditioned solutions when estimating output weights in the former. Moreover, the latter can produce sparse output weights, which reduces memory storage requirements. To evaluate system performances, 1MHz and 2MHz bandwidth cases with specified parameters are tested. One-step prediction, multi-step prediction and robustness are evaluated for various signal to noise ratios (SNRs). The results indicate that the AEESN not only offers satisfactory prediction performance, but also effectively avoids ill-conditioned solutions and produces sparse output weights. Therefore, it can assure adaptive IoT communication.https://ieeexplore.ieee.org/document/8952717/IEEE802.11ah standardOFDM systemchannel predictionecho state networkadaptive elastic network |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yongbo Sui Yigang He Tongtong Cheng Yuan Huang Yuting Wu Luqiang Shi Ali Farhan |
spellingShingle |
Yongbo Sui Yigang He Tongtong Cheng Yuan Huang Yuting Wu Luqiang Shi Ali Farhan Adaptive Elastic Echo State Network for Channel Prediction in IEEE802.11ah Standard-Based OFDM System IEEE Access IEEE802.11ah standard OFDM system channel prediction echo state network adaptive elastic network |
author_facet |
Yongbo Sui Yigang He Tongtong Cheng Yuan Huang Yuting Wu Luqiang Shi Ali Farhan |
author_sort |
Yongbo Sui |
title |
Adaptive Elastic Echo State Network for Channel Prediction in IEEE802.11ah Standard-Based OFDM System |
title_short |
Adaptive Elastic Echo State Network for Channel Prediction in IEEE802.11ah Standard-Based OFDM System |
title_full |
Adaptive Elastic Echo State Network for Channel Prediction in IEEE802.11ah Standard-Based OFDM System |
title_fullStr |
Adaptive Elastic Echo State Network for Channel Prediction in IEEE802.11ah Standard-Based OFDM System |
title_full_unstemmed |
Adaptive Elastic Echo State Network for Channel Prediction in IEEE802.11ah Standard-Based OFDM System |
title_sort |
adaptive elastic echo state network for channel prediction in ieee802.11ah standard-based ofdm system |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2020-01-01 |
description |
As a promising wireless communication technology, the IEEE802.11ah standard is designed to connect various sensors in the Internet of Things (IoT) in future. It is important to investigate adaptive transmission in the IEEE802.11ah standard. However, exact channel state information (CSI) is required. Channel prediction is an available approach. Therefore, an adaptive elastic echo state network (AEESN) for channel prediction in the IEEE802.11ah standard-based orthogonal frequency division multiplexing (OFDM) system is introduced in this paper. The AEESN includes two key components, a basic echo state network and an adaptive elastic network. The latter is imported to overcome collinearity problems due to vast neurons in the former and to avoid ill-conditioned solutions when estimating output weights in the former. Moreover, the latter can produce sparse output weights, which reduces memory storage requirements. To evaluate system performances, 1MHz and 2MHz bandwidth cases with specified parameters are tested. One-step prediction, multi-step prediction and robustness are evaluated for various signal to noise ratios (SNRs). The results indicate that the AEESN not only offers satisfactory prediction performance, but also effectively avoids ill-conditioned solutions and produces sparse output weights. Therefore, it can assure adaptive IoT communication. |
topic |
IEEE802.11ah standard OFDM system channel prediction echo state network adaptive elastic network |
url |
https://ieeexplore.ieee.org/document/8952717/ |
work_keys_str_mv |
AT yongbosui adaptiveelasticechostatenetworkforchannelpredictioninieee80211ahstandardbasedofdmsystem AT yiganghe adaptiveelasticechostatenetworkforchannelpredictioninieee80211ahstandardbasedofdmsystem AT tongtongcheng adaptiveelasticechostatenetworkforchannelpredictioninieee80211ahstandardbasedofdmsystem AT yuanhuang adaptiveelasticechostatenetworkforchannelpredictioninieee80211ahstandardbasedofdmsystem AT yutingwu adaptiveelasticechostatenetworkforchannelpredictioninieee80211ahstandardbasedofdmsystem AT luqiangshi adaptiveelasticechostatenetworkforchannelpredictioninieee80211ahstandardbasedofdmsystem AT alifarhan adaptiveelasticechostatenetworkforchannelpredictioninieee80211ahstandardbasedofdmsystem |
_version_ |
1724186323458195456 |